单项选择题
Bank of China informs the beneficiary, a Chinese import and export company that a foreign bank has opened a letter of credit in his favor. The bank does not add its engagement by informing the beneficiary. The Bank of China ia acting as （）.
A．The issusing bank B．The advising bank C．The confirming bank D．The negotiating bank
单项选择题 If the seller finds any discrepancies in the letter of credit, whom does he write to asking for an amendment?（）.
单项选择题 The basic functions of a bill of lading is (are)（）.
单项选择题 A bank opens an L/C at the request of the importer. It is a (an)（）.
